Mechanical refrigeration



c. c. SPREEN I MECHANICAU REFRIGERATION June 2, 1925.

Filed 'Jan. 5, 1924 2 Sheets-Sheet 1 Fig. 1. I

Charles Sprmn' lnveni or Fig.6.

June 2, 1925.

V c. c. SPREEN I MECHANICAL nnmmsmnoa Filed Jan, "5, 1924 2 Sheets-Sheet2 16 Charles C Sprezi .lzzvezzzor p frigeration, of which the followinPatented June 2, i925;

, GHABLIB C. SPBEEN, OI'JDETBOIT, MICHIGAN, LSSIGNOR, BY MESNEASSIGNMENTS,

r rsufrorrlca.

TO KELVIN'A'IOB CORPORATION, Q1 DETROIE, MICHIGAN, A CORPORATION OFuncifliv'ronn mmemnon;

application ama 5, ma Serial No. 684,657.

Toallwhomitmayconcem: l

Be it known that'I, CHARLES C. Srnnnir, a citizenof the United States,residin at Detroit, in the county of Wayne and tate of Michigan, haveinvented a-certainnew and useful'Improyement in Mechanical; Re-

18 '8. full, clear, and exact description,'re erence being had to theaccompanying drawings.

ing this specification and forming a part thereof I have shown, forpurposes of illustration, one embodiment which my invention may assume.In these drawings:

Figure'l is a section on the line 1 1 of Figure 3,

Y Figure 2 is asection "on the line 22 of Figure 1, while j Figure 3 isva section on the line 3-3 of Figures land 2. p

In the embodiment of my invention herein shown my invention isillustrated as applied to an ice cream cabinet 11 provided with a bottomwall 12, a front wall 13, a rear wall 14, an end wall 15, and'apartition wall 16 dividing thecabinet into a refrigerating compartment(not shown) and a compressorcompartment, and positioned within the ofthe partition 16 is a compressor unit 31 comprising a compressor 32having its mlet 33 connected by meansof a duct 34 to the outlet 35 of anexpansioncoil located within the refrigerating chamber, a condensingcoil 36 having its inlet 37 connected through. a shut-off valve .38 tothe outlet 39 of the compressor 32, an expansion valve 40 having its 7outletof the cooling air circulatingabout the condensing coil 36 andnear its lower end with an opening My invention relates to mechanicalrefrigeration. In the drawings accompanycabinet 11 on the compressorchamber side' 49 for the inlet of this circulating air. T e openin 49 ispositioned directly in front of a an 50 carried by the shaft 51 of themotor 45 and is elongated to remain in front of the fan 50 durmgthetravel of the motor 45' in response to-means connected to the motor 45to constantly urge the motor 45- away from the I compressor 32 to. thusmaintain ti ht the belt the compressor 32. To facilitate the passage ofthe circulating air into and out of the casing 46 connecting the'motor45 an 11 the casing 11 is provided with two sets of louvres 52 and 53positioned respectively -adjacent the outlet opening 48 in the condensercoil casing 47 and the fan 50 and inlet opening 49 of the condensercasing 47, If desired the fan 50 may be surrounded by,

a perforated housing 54 provided with a plurality of air inlet openings55 and an' elongated opening 56 for the passage of the shaft 51 duringthe transverse movement thereof.

It will be readily apparent to those skilled in the art that theparticular embodiment of my invention herein disclosed may be readilychanged and modified without departing from the spirit of my inventionor sacrificing the advantages thereof and it will therefore beunderstood that the disclosure herein is illustrative only and myinvention not limited thereto.

I claim: a

1. In combination, a compressor unit comprising a compressor and a motorfor operating said compressormounted for movement transverse to the axisof said motor to maintain'tight the belt connecting saidmotor and saidcompressor, a fan carried b said motor, an air cooled condensing coicon- 'nected to the outlet of said compressor, and

an enclosure surrounding said coil and rovided with at least one inletopening an at least one outlet opening and having oneo f said openingsarrange said" fan and elongated to register with said to cooperate withfan during the transverse movement of said fan. 3 v v 2. In combination,a compressor unit com- I prising a motor part and a compressor part, andan air cooled condensing 0011 connected prising a compressor and a motorfor operating said compressor mounted for movement transverse to theaxis of said motor to maintain tight the belt connecting said motor andsaid compressor, a fan carried by saidmotor, an air cooled condensingcoil connected to the outlet of said compressor, an enclosuresurrounding said coil and provided with at least. one inlet opening andat least one outlet opening and having one-of said openings arranged tocooperate with said fan andelongated to register with said fan duringthe transverse movement of said fan, and a cabinet enclosing saidcompressor unit and said enclosure and said fan and provided with aninlet opening arranged to cooperate with. an inlet opening of saidenclosureand an outlet openlng arranged to cooperate with an outletopening of said enclosure, one of the openings in said casingcooperating with the enclosure opening which cooperates with said fan.

3. In combination, a compressor unit comto the outlet of the compressor,an enclosure surrounding said coil and provided with at least one inletopening and at least one outlet opening, a fan positioned at onecf saldopenings and arranged-to circulate an about said coil, and a cabinet'enclosing said com' 7 ing which cooperates with said fan.

4;. In combination, a compressor unit, an air cooled condensingcoilconnected to the outlet of the compressor, an enclosure surroundingsaid coil and provided with at least one inlet opening and at least oneoutlet opening, and a cabinet enclosing said compressor unit and saidenclosure and provided with an inlet opening arranged to cooperate withan inlet opening of said enclosure and an outlet opening arranged tocooperate with an outlet opening of said enclosure.

5. In combination, a fan, a belt connecting said fan with anothermachine, a mounting for said fan arranged to move said fan transverselyof the axis of said fan to maintain said belt tight, an air cooledcondensing coil, and an enclosure surrounding said 0011 and providedwith an opening cooperating with said fan and elongated to register withsaid fan during the transversemovement of said fan.

6. In combination, a fan, a belt connecting said fan with anothermachine, a mounting for said fan arranged to move said fan transverselyof the axis of said fan, an air cooled condensing coil, and an enclosuresurrounding said coil and provided with an opening cooperating with saidfan and elon. gated to register with said fan during the transversemovement of said fan.

7. In combination, a compressor unit having one part mounted formovement transverse to the axis of said part, a fan carried by said art,an air cooled condensing coil connected to the outlet of the compressor,an enclosure surrounding said coil and providedwith at least one inletopening and at least one outlet opening and having one of said openingsarranged to cooperate with said fan and elongated to register with saidfan during the transverse movement of said fan, and a cabinet enclosinsaid movable part and said enclosure an said fan and provided with aninlet opening arranged to cooperate with an inlet opening of saidenclosure and an outlet opening arranged to cooperate with an outletopening of said enclosure, one of the openings in said casingcooperating with the enclosure opening which cooperates with said fan 8.In combination, a compressor unit comprising a motor part and acompressor part,

and having one part mounted for movement transverse to the axis of saidpart, a fan carried by said part, an air cooled condensing coilconnected to the outlet of the compressor, and anenclosure surroundingsaid coil and provided with at least one inlet opening and at least oneoutlet opening and having one of said openings arranged to cooperatewith said fan and elongated to register with said fan during. thetransverse movement of said fan.

9. In combination, a compressor unit comprising a motor part and acompressor part, 1 and having one part mounted for movement transverseto the axis of said part to maintain tight the belt connecting said partwith another portion of said unit, a fan carried by said movable part,an air cooled condensing coil connected to the outlet of the compressor,and an enclosure surrounding said coil and provided with at least oneinlet opening and at least one outlet opening and having one of saidopenings arranged to cooperate with said fan and elongated to registerwith said fan during the transverse movement of said fan.

10. In combination, a compressor unit comprising a motor part and acompressor part, and having one part mounted for movement transverse tothe axis of said part to maintain tight the belt connecting said partwith another portion of said unit, afan carried by said movable part, anair cooled condensing coil connected to the outlet of the compressor, anenclosure surrounding said coil and provided with at least one inletopening and atleast one outlet opening and having one of said openingsarranged to coo erate with Said fan ami elongeted to register with saidfen during the transverse movement of said fan, and a cabinet enclosingsaid movable part and said enclosure and said fan and provided with" aninlet opening arrangedto cooperate with an inlet opening of saidenclosure and an outlet opening-arsignature. v e v r CHARLES C. S PREEN.

